U.S. patent number 7,589,616 [Application Number 11/040,352] was granted by the patent office on 2009-09-15 for mobile devices including rfid tag readers.
This patent grant is currently assigned to Avaya Inc.. Invention is credited to Nandor Klatsmanyi, Assaph Mehr, Nivedita Mogale, David Shaw.
United States Patent |
7,589,616 |
Klatsmanyi , et al. |
September 15, 2009 |
**Please see images for:
( Certificate of Correction ) ** |
Mobile devices including RFID tag readers
Abstract
A wireless access point in an object location system is provided
that includes a tag filtering agent 128 operable to (a) receive tag
information from a mobile communication device 104, (b) compare the
received tag information with a set of a plurality of tag
information to determine whether to report the received tag
information to a central registry 116; and (c) when appropriate
report the received tag information and physical location
information to the central registry 116. The tag information
corresponds to tag information contained by a tag 120 on an object
and was obtained by a tag reader 256 on the mobile communication
device. The physical location information corresponds to a physical
location of the mobile communication device 104 at a selected point
in time.
Inventors: |
Klatsmanyi; Nandor (Berowra,
AU), Mehr; Assaph (St. Leonards, AU),
Mogale; Nivedita (Beaumont Hills, AU), Shaw;
David (Croydon Park, AU) |
Assignee: |
Avaya Inc. (Basking Ridge,
NJ)
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Family
ID: |
36581990 |
Appl.
No.: |
11/040,352 |
Filed: |
January 20, 2005 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20060158310 A1 |
Jul 20, 2006 |
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Current U.S.
Class: |
340/10.1;
340/5.64; 340/5.61; 340/10.4; 455/435.1; 455/456.1; 455/556.1 |
Current CPC
Class: |
G08B
25/10 (20130101); G08B 13/2482 (20130101); G08B
25/08 (20130101); G08B 13/2462 (20130101); H04M
1/72412 (20210101) |
Current International
Class: |
H04Q
5/22 (20060101) |
Field of
Search: |
;340/10.1,10.4,825.69,825.72,5.61,5.64
;455/403,41.2,90.2,414.1 |
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[Referenced By]
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Primary Examiner: Brown; Vernal U
Attorney, Agent or Firm: Sheridan Ross P.C.
Claims
What is claimed is:
1. A method for locating an object, comprising: (a) in a mobile
communication device comprising a tag reader, the tag reader
wirelessly accessing tag information from a tag on an object, the
object being separate from and in spatial proximity to the
communication device, and (b) the mobile communication device
reporting the accessed tag information to a wireless access point
during a routine communication over a control channel between the
cellular phone and the wireless access point, wherein the routine
communication is at least one of a system id code signal, a
registration request, a call setup signal, and a hand off signal,
and wherein a law enforcement agency is notified when the tag
information indicates a potential law violation involving the
object.
2. The method of claim 1, wherein the mobile communication device
is a cellular phone and the wireless access point is a base station
and further comprising: (c) the wireless access point receiving the
tag information; (d) the wireless access point comparing the tag
information with a listing of tag information corresponding to a
plurality of tags to determine whether to report the received tag
information to a central registry; and (e) when the received tag
information is to be reported, transmitting to the central registry
the tag information, physical location information, and a time
stamp associated with the reporting mobile communication
device.
3. The method of claim 2, further comprising: (f) the central
registry receiving the tag and physical location information; (g)
the central registry comparing the tag information with a listing
of tag information corresponding to a plurality of tags to
determine whether to report the received tag information to a
dispatcher; and (h) when the received tag information is to be
reported, transmitting to a dispatcher the tag and physical
location information and associated time stamp.
4. The method of claim 1, wherein, in the reporting step, the
mobile communication device further provides to the wireless access
point a physical location of the communication device and wherein
the physical location is determined by a Global Positioning System
module in communication with the mobile communication device.
5. The method of claim 2, wherein, in the transmitting step (e),
the wireless access point further provides to the central registry
a physical location of the communication device and wherein the
physical location is determined by the wireless access point in
communication with the mobile communication device.
6. A computer readable medium comprising processor-executable
instructions operable to perform the steps of claim 1.
7. A wireless access point in an object location system,
comprising: a tag filtering agent operable to receive tag
information through a routine communication from a mobile
communication device, wherein the tag information corresponds to
tag information contained by a tag on an object, separate from and
in spatial proximity to the communication device, and was obtained
by a tag reader on the mobile communication device, wherein the
physical location information corresponds to a physical location of
the mobile communication device at a selected point in time, and
wherein the routine communication is at least one of a system id
code signal, a registration request, a call setup signal, a hand
off signal, another type of signal exchanged over a call control
channel and/or a bearer channel during a voice call, and another
type of signal exchanged over a call control channel when the
cellular phone is in an idle state.
8. The wireless access point of claim 7, wherein the physical
location information is received from a Global Positioning System
module on the mobile communication device and approximates a
physical location of the mobile communication device when the tag
information was obtained by the tag reader.
9. The wireless access point of claim 7, wherein the physical
location information is determined by the wireless access point and
approximates a physical location of the mobile communication device
when the tag information was obtained by the tag reader.
10. The wireless access point of claim 7, wherein the mobile
communication device is a cellular phone and the wireless access
point is a base station, and wherein the tag filtering agent
reports a time stamp to the central registry, the time stamp being
associated with the reporting mobile communication device and
approximating a time when the tag information was obtained by the
tag reader.
11. The wireless access point of claim 7, wherein the central
registry comprises a tag responding agent operable to (a) receive
the tag and physical location information; (b) compare the tag
information with a listing of tag information corresponding to a
plurality of tags to determine whether to report the received tag
information to a dispatcher; and (c) when the received tag
information is to be reported, transmit to the dispatcher the tag
and physical location information.
12. The wireless access point of claim 10, wherein the tag
information is included in a routine communication between the
cellular phone and base station.
13. The wireless access point of claim 10, wherein the tag
information is transmitted on one or both of the control and bearer
channels between the mobile communication device and wireless
access point.
14. The wireless access point of claim 7, wherein the mobile
communication device is a laptop and the wireless access point is a
web service.
15. A system for locating an object, comprising: a base station
operable to communicate with a plurality of tag reporting agents
operable to report respective accessed tag information to the base
station, wherein the accessed tag information is received by a
plurality of tag readers from tags located on a plurality of
objects, wherein the tag readers and tag reporting agents are
located in a plurality of mobile communication devices, wherein
each tag reader is operable to read a plurality of tags, wherein
the tag information is included in routine control signals between
the communication devices and the base station, and wherein the
routine communication is at least one of a system ID code signal, a
registration request, a call setup, and a handoff signal.
16. The system of claim 15, wherein the mobile communication device
is a cellular phone and wherein the base station comprises a tag
filter for (a) comparing the tag information with a listing of tag
information corresponding to a plurality of tags to determine
whether to report the received tag information to a central
registry; and (b) when the received tag information is to be
reported, transmitting to a central registry the tag information,
physical location information, and a time stamp associated with the
reporting mobile communication device.
17. The system of claim 15, further comprising: a central registry
comprising a tag responding agent operable to (a) receive the tag
and physical location information; (b) compare the tag information
with a listing of tag information corresponding to a plurality of
tags to determine whether to report the received tag information to
a dispatcher; and (c) when the received tag information is to be
reported, transmit to a dispatcher the tag and physical location
information and associated time stamp.
18. The system of claim 17, wherein, in the reporting function, the
tag reporting agent further provides to the base station a physical
location of the communication device and wherein the physical
location is determined by a Global Positioning System module in
communication with the tag reporting agent.
19. The system of claim 15, wherein the tag information is
transmitted on one or both of the control and bearer channels
between the plurality of mobile communication devices and base
station.
20. The system of claim 15, wherein, in the transmitting operation,
the base station further provides to the central registry a
physical location of the communication device and wherein the
physical location is determined by the base station in
communication with the mobile communication device.
21. The system of claim 15, wherein each communication device is a
cellular phone, wherein each cellular phone comprises a tag reader
and tag reporting agent, wherein the plurality of cellular phones
are associated with a plurality of different cellular phone users
and wherein, in exchange for each user consenting to the tag
reporting agent in the user's communication device providing
respective tag information to a base station, the user receives a
discount on cellular phone rates and/or a purchase price of the
user's cellular phone.
22. The system of claim 17, wherein the dispatcher is associated
with a law enforcement authority.
23. A method for locating an object, comprising: (a) wirelessly
accessing tag information from a plurality of tags on one or more
objects with a mobile communication device comprising a tag reader,
the one or more objects being separate from and in spatial
proximity to the communication device, and (b) reporting the
accessed tag information to a wireless access point as part of a
routine communication over a control channel between the mobile
communication device and the wireless access point, and wherein the
routine communication is at least one of a system id code signal, a
registration request, a call setup signal, and a hand off
signal.
24. The method of claim 23, further comprising: (c) receiving the
tag and physical location information as a part of the routine
communication; (d) comparing the tag information with a listing of
tag information corresponding to a plurality of tags to determine
whether to report the received tag information to a dispatcher; and
(e) when the received tag information is to be reported,
transmitting to the dispatcher the tag and physical location
information.
25. The method of claim 23, further comprising: (c) comparing the
tag information with a listing of tag information corresponding to
a plurality of tags to determine whether to report the received tag
information to a central registry; and (d) when the received tag
information is to be reported, transmitting to a central registry
the tag information, physical location information, and a time
stamp associated with the reporting mobile communication
device.
26. The method of claim 23, wherein the mobile communication device
is a cellular phone.
27. The method of claim 23, wherein the mobile communication device
is a laptop and the wireless access point is a web service.
Description
CROSS REFERENCE TO RELATED APPLICATION
Cross reference is made to U.S. patent application Ser. Nos.
10/911,090, filed Aug. 3, 2004, entitled "INTEGRATED REAL-TIME
AUTOMATED LOCATION POSITIONING ASSET MANAGEMENT SYSTEM" and
10/932,507, filed Sep. 1, 2004, entitled "COMMUNICATION DEVICE
LOCATING SYSTEM", each of which is incorporated herein by this
reference.
FIELD
The invention relates generally to object tracking and particularly
to object tracking using a communications network.
BACKGROUND
Each year, crimes, including theft, acts of terrorism, and other
acts of violence, are a major global issue. Crime rates are rising,
with drastic consequences for society, its members, and the
economy. Automatic identification systems, such as asset management
and security systems, have been long employed for combating
property crimes, particularly shop lifting. Automatic
identification systems refer to a host of technologies used to
assist machines in identifying objects, such as assets and people.
There are a number of technologies falling under the automatic
identification umbrella, including bar codes, smart cards, voice
recognition technologies, biometric technologies (such as retina
scans), optical character recognition technologies, Radio Frequency
IDentification or RFID systems, magneto-acoustic systems, and other
technologies.
RFID, in particular, is gaining wide acceptance as a highly
effective and inexpensive automatic identification methodology.
RFID is a generic term for technologies that use radio waves to
identify automatically objects. Passive and active RFID
transponders or tags contain coiled antennas to enable them to
receive and respond to radio-frequency queries from an RFID reader
or transceiver (which also includes an antenna). The transceiver
converts the radio waves returned from the RFID tag into a form
that can be passed onto computers. Typically, a serial number that
identifies a product uniquely, and sometimes other information, is
stored on the RFID tag (which can store up to 2 KB of data).
Passive RFID tags do not have a power supply. A minute electrical
current induced in an antenna by the incoming radio-frequency scan
provides enough power for the tag to send a response. Active RFID
tags have an on-board power source and may have longer ranges and
larger memories than passive tags and the ability to store
additional information sent by the transceiver. Semi-passive RFID
tags use an on-board power source to run the tag's circuitry but
communicate by drawing power from the transceiver. Chips in RFID
tags can be read-write or read-only.
Automatic identification systems, however, have not been a complete
solution to preventing and/or solving crimes. For example, they
typically require either movement of objects or people past
scanners (e.g., palettes leaving a warehouse or airline passengers
moving past a magnetic detector) or employees around a facility to
verify manually that the data matches the records (e.g., stock
takes). The locations of the scanners are fixed. Only if an object
or person happens to pass through the scanner can they be located.
Missing or stolen objects that are being used in a public setting
often escape detection. Moreover, Local Area Networks or LAN's for
automatic identification systems are not widely used due to the
high cost and installation expenses of the cabling necessary to
support the LAN.
SUMMARY
These and other needs are addressed by the various embodiments and
configurations of the present invention. The present invention is
generally directed to the use of automatic identification systems,
particularly RFID systems, in mobile networked devices to detect
and locate selected tags and the object/person associated
therewith. As used herein, a "tag" refers to any active or passive
device comprising readable information, such as a barcode, smart
card, memory card, microprocessor card, and transponder.
In one embodiment of the present invention, an automatic
identification method for locating an object associated with a tag
is provided. The method includes the steps:
(a) in a mobile communication device comprising a tag reader, the
tag reader wirelessly accessing tag information from the tag on the
object and
(b) the mobile communication device reporting the accessed tag
information to a wireless access point. Examples of the mobile
communication device include a cellular phone, a laptop, and a
Personal Digital Assistant or PDA. The tag information can be a
single bit (ON/OFF), such as contained in a one-bit transponder,
or, more typically, a plurality of bits, which commonly includes a
unique, numerical, alphabetical, or alphanumerical code, such as
contained in an n-bit transponder. The tracked object can be
animate or inanimate, e.g., a person (such as a parolee, a VIP,
person under surveillance, a suspect, and the like), an animal
(e.g., livestock, pets, and the like), automobiles, bicycles,
motorcycles, consumer goods, weapons, explosives, banned
substances, drugs, and the like.
In one configuration, the tag information is provided by the
wireless access point to a Central RFID Registry System or CRRS.
The CRRS is typically managed and funded by a local, state,
provincial, or federal governmental entity or a private authority.
Once a tag is located and scanned, the tag reader can query or
otherwise report the tag information the wireless access point
and/or CRRS as a standalone message or as part of a standard or
normal telecommunications control or bearer message. When the tag
is of interest to the CRRS, appropriate personnel can be dispatched
to the physical location of the mobile communication device (during
tag scanning). To avoid inappropriate privacy intrusions, the
physical location of the device can be provided by wireless access
point only when the tag is reported as corresponding to a missing
or stolen object and/or the mobile communication device user can be
prohibited from accessing the tag information being accessed by
their device. Tracking tags can assist law enforcement and security
personnel in locating lost, missing, or stolen objects, tracking
banned or controlled substances or weapons, and tracking persons
such as parolees and crime suspects.
The tag reader is connected to or integrated with the mobile
communication device and can access the CRRS via the wired and/or
wireless network in communication with the device. While the mobile
communication is switched on, the tag reader attempts to find and
scan tags located within the reader's range. Mobile users can be
motivated by communication service discounts and/or payment(s) to
participate in the system, thereby increasing the number of mobile
readers engaged with mobile communication devices and therefore the
efficiency of the system. The random movement of the owners of the
mobile devices can provide an almost effortless large area scanning
process. In this manner, a wide area, regional area, metropolitan
area, or local area object tracking network can be provided and
crime rates can be reduced using an automated neighborhood watch
style solution.
In these configurations, the tag reader and other logic can be
implemented as software stored on a computer readable medium or a
logic circuit.
These and other advantages will be apparent from the disclosure of
the invention(s) contained herein.
The above-described embodiments and configurations are neither
complete nor exhaustive. As will be appreciated, other embodiments
of the invention are possible utilizing, alone or in combination,
one or more of the features set forth above or described in detail
below.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of an automatic identification network
according to an embodiment of the present invention;
FIG. 2 is a block diagram of a mobile device according to an
embodiment of the present invention;
FIG. 3 is a flowchart depicting the operation of a tag reporting
agent in a mobile device according to an embodiment of the present
invention;
FIG. 4 is a flowchart depicting the operation of a tag filtering
agent in a base station according to an embodiment of the present
invention; and
FIG. 5 is a flowchart depicting the operation of a tag responding
agent in a central registry according to an embodiment of the
present invention.
DETAILED DESCRIPTION
FIG. 1 depicts an automatic identification network according to an
embodiment of the present invention. The system 100 comprises a
plurality of mobile communication devices 104a-n in communication
with a plurality of base stations 108a-m, which are turn in
communication via network 112 with a central registry 116. The
system 100 locates animate or inanimate objects corresponding with
the tags 120a-o by means of tag readers located in the mobile
communication devices 104a-n. The base stations 108a-m report the
detected tag information and the reporting mobile communication
device's physical location information to the central registry 116
via network 112. The registry 116 can contact dispatcher 126 to
dispatch appropriate personnel, such as police, security personnel,
and the like, when selected tag data, such as a unique tag
identifier corresponding to a selected object, is identified.
The mobile communication devices 104a-n can be one or more types of
mobile communication devices comprising tag readers. Examples
include cellular phones, Personal Digital Assistants or PDA's,
laptops, radios, walkie-talkies, pagers, tag reader-equipped
vehicles, such as police cars, and the like.
An exemplary mobile communication device 104 is shown in FIG. 2.
The device 104 is a communications device, such as a cellular
telephone, that includes a microphone 200, Analog-to-Digital
Converter 204 that converts the analog voice stream received from
the microphone 200 into a digital voice stream, a transmitter (Tx)
digital signal processor (DSP) 204 that performs speech encoding,
channel encoding, and interleaving, an equalizer 208 that
compensates for any frequency-dependent impairments occurring
during transmission, a modulator 212 that modulates (typically in
frequency or phase) the received signal, an upconverter 216 that
changes the frequency of the signal, a synthesizer 220 that
generates various carrier frequencies, a power amplifier 224, a
duplexer 228 that acts as a double filter (one for the transmit
band and one for the receive band), an antenna that sends and
receives signals, a low noise amplifier 232, a down converter 236
that lowers the carrier frequency, a demodulator 240 that strips
away the radio frequency leaving only a digital bit stream, a
receiver (Rx) DSP 244 that performs speech and/or channel
decryption and component separation of the digital bit stream, a
digital-to-analog (D/A) converter 248 that converts the digital
voice stream to an analog voice stream, a speaker 252 that provides
the analog voice stream to the user, a tag reader 256 and sensor
that collectively receive data from tags 120, a multiplexer 264
that combines inputs 268 and 272 into a single digital output
stream 276, and a tag reporting agent 260 that, upon the occurrence
of a tag reporting event, provides sensed tag data or information
and corresponding mobile communication device physical location
information to the multiplexer 264 as the input 272. As will be
appreciated, the mobile communication device physical location
information can be generated by any conventional technique such as
radiophysical location techniques (e.g., triangulation, angle of
arrival, signal strength, and time-based techniques) and GPS
signals received from a GPS receiver on board the mobile
communication device.
The set of tag and physical location information can be provided to
the base station in a variety of different ways. The information
may be transmitted as part of normal or routine signals exchanged
between the mobile communication device and base station. For
example, the information may be conveyed on a control channel in a
system id code signal, a registration request, a call setup signal,
a hand off signal, and/or another type of signal exchanged between
the mobile communication device and the base station over the
control channel and/or on the bearer channel during a call or when
the mobile communication device is in the idle state (i.e., when
the device is not receiving or making calls). For example, in CDMA
2000 when the mobile communication device is in the idle state, the
base station sends the configuration system and overhead
information on the PAGING channel and the communication device
responds on the ACCESS channel. These messages are generally called
paging and access channel messages, respectively. Typically, the
message includes at least the current location of the mobile
communication device, the collected tag information, and a time
stamp. As will be appreciated, the messages will vary depending on
the standard(s) in use.
Returning to FIG. 1, the base stations 108a-m can be any wireless
access point, such as a cell site in a cellular, Personnel
Communications Service or PCS, or Specialized Mobile Radio or SMR
system, modified as set forth below. It typically includes the
necessary infrastructure to enable wireless communications
including a tower (not shown), antennas (not shown), cables (not
shown), RF transceivers (not shown), and power supplies (not
shown). The base station may communicate with the mobile
communication devices using any suitable protocol, such as Advanced
Mobile Telephone Service, Code Division Multiple Access, Digital
Advanced Mobile Telephone Service, Digital Communication Service,
Group Special Mobile, Japan Total Access Communications System,
North American Digital Cellular, Nordic Mobile Telephone, Personal
Communications Services, Personal Digital Cellular, Specialized
Mobile Radio, Time Division Multiple Access, 1S-95, WCDMA, and
Total Access Communications System.
An exemplary base station configuration is shown in FIG. 1. The
base station includes a processor 128 and, in memory 124, a tag
filtering agent 128 that (a) determines when, and with what
frequency, tag information is provided to the central registry 116
via network 112, (b) for tag information of interest, obtains from
the base station physical location logic the physical location of
the mobile communication device reporting selected tag information,
and (c) reports the tag information and corresponding physical
location information to the registry, if appropriate. As will be
appreciated, because of the limited range of the tag reader in the
mobile communication device 104 the physical location of the mobile
communication device 104 provides a close approximation of the
physical location of the tagged object.
Different tag reporting events can be used to trigger reporting by
the tag reporting agent (to the base station) and/or by the tag
filtering agent (to the central registry). For example, tag
information can be reported at specified time intervals, upon
receipt of tag information corresponding to one or a selected
number of tags, upon receipt of specific tag information (e.g., tag
information identified as corresponding to a lost or stolen animate
or inanimate objects), upon receipt of tag information regarding a
specific type of object (e.g., explosives, weapons, etc.), and when
it is determined that the physical location of the mobile
communication device and/or tracked object (based on tag
information reported by a number of different mobile communication
devices) has changed by a selected distance, or a combination
thereof. For example, for relatively stationary objects, such as
large immobile objects, the frequency of reporting the physical
location of the corresponding tag information may be less frequent
than for small mobile objects. When tag information is received by
a base station from several different mobile communication devices,
the filtering agent can be configured to send only the most
recently reported tag information and its corresponding physical
location information rather than all of tag information and all of
its reported physical locations.
The tag listings in the databases 136a-m can be listing(s) of tag
data to report and/or not to report. An example of the former type
of listing is where the listed tag data corresponds to missing or
stolen objects or otherwise is of interest to law enforcement or
security personnel. An example of the latter type of listing is
where the listed tag data does not correspond to missing or stolen
objects or otherwise is not of interest to law enforcement or
security personnel and/or where the tag information has previously
been reported by mobile communication devices within the base
station's range.
The network 112 can be one or more wireless or wireline and
circuit- or packet-switched networks, depending on the application.
Typically, the network 112 comprises the Public Switched Telephone
Network and/or the Internet.
Although the mobile communication device 104 is shown as being in
wireless communication with the base stations, it is to be
understood that the intermediate network connectivity can be any of
a number of other configurations. For example, the mobile
communication device can be a laptop or PDA wireline connected to
an Ethernet port and/or including a location device such as a GPS
receiver, which is in turn connected to the Internet and/or a web
service (available over the Internet). The mobile communication
device can be a laptop or PDA wirelessly in communication (such as
via the Bluetooth.TM., 802.11, HiperLAN, and Digital Enhanced
Cordless Telephone standards) with a wireless access point.
The central registry 116 is a private or governmental service that
acts as the data repository and database updating agent for tag
data. When a tag becomes of interest or is no longer of interest,
the tag information is maintained in the registry tag listings
database and provided to the various base stations as a request to
update their respective tag listing databases. The registry tag
listing database 140 typically comprises a listing of tag
information that is of interest to the registry operator, such as
the tag information associated with lost, missing, or stolen
objects, controlled substances (such as explosives, weapons, drugs,
and banned substances), and the like. In the memory 144 of the
central registry 116, a tag responding agent 148 determines whether
tag information received from the base stations is on the list and,
if so, forwards the tag and associated physical location
information to the dispatcher 126 to dispatch appropriate law
enforcement and/or security personnel. A central registry 116 is
typically assigned a specific geographic area, such as a part of a
city, county, state, province, or country.
Mobile communication device users can be offered incentives to
participate in the physical location system. For example, mobile
phone users who agree to have tag readers installed in their phones
can receive discounts on cell phone rates and/or the purchase price
of the cell phone. The discount can be funded wholly or partly by
the sponsoring governmental entity.
The operation of the system will now be described with reference to
FIGS. 3-5.
Referring to FIG. 3, the operation of the tag reporting agent 260
in the mobile communication device 104 will be discussed.
In step 300 the tag reader 256 has sensed a tag 120, accessed tag
information from the sensed tag, and reported the tag information
to the tag reporting agent 260. In response, the tag reporting
agent 260 obtains the current physical location of the host mobile
communication device 104.
In decision diamond 304, the tag reporting agent 260 determines
whether a tag reporting event has occurred. Exemplary tag reporting
events have been discussed previously. If not, the agent 260
returns to decision diamond 304 until a tag reporting event has
occurred. If so, the agent 260 proceeds to step 308 and transmits
the tag information and associated mobile communication device
physical location information and time stamp (indicating when the
tag information was accessed by the tag reader in the mobile
communication device) to the base station 108.
Referring to FIG. 4, the operation of the tag filtering agent 128
in the base station 108 will be now discussed.
In decision diamond 400, the filtering agent 128 determines whether
a tag reporting signal has been received from the tag reporting
agent in a mobile communication device within range of (or
currently being serviced by) the base station. If not, the agent
128 repeats decision diamond 400 until such a signal is received.
If so, the agent 128 proceeds to decision diamond 404.
In decision diamond 404, the filtering agent 128 determines whether
or not to report to the central registry the tag and physical
location information and associated time stamp in the received tag
reporting signal. The trigger for reporting the information can be
the occurrence of a tag reporting event. For example, the tag
information can be included in a report or not report list in the
associated database 136. When the information is not to be
reported, the agent 128 returns to decision diamond 400. When the
information is to be reported, the tag and physical location
information and associated time stamp is forwarded to the central
registry in a further tag reporting signal. The agent 128 then
returns to decision diamond 400.
Referring to FIG. 5, the operation of the tag responding agent 148
in the central registry 116 will be now discussed.
In decision diamond 500, the responding agent 148 determines
whether a tag reporting signal has been received from the tag
filtering agent in a base station 108 serviced by the central
registry 116. If not, the agent 148 repeats decision diamond 500
until such a signal is received. If so, the agent 148 proceeds to
decision diamond 504.
In decision diamond 504, the agent 148 determines whether the
received tag and physical location information and associated time
stamp should be reported to the dispatcher 124. This is typically
effected by mapping the received tag information against one or
more tag information listings in the database 140. The database may
include a plurality of listings of tags of interest to law
enforcement/security personnel, each listing having a corresponding
level of priority or importance. For example, objects having lower
values may be in a lower priority list while objects having higher
values are in a higher priority list. In such an implementation,
the tag and associated physical location information and timestamp
and corresponding priority level would be transmitted to the
dispatcher. When the received tag and physical location information
and timestamp are to be reported, the agent 148, in step 508,
forwards the information to the dispatcher.
When the received tag and physical location information is not to
be reported or after step 508, the agent 148 updates the registry
database 140. The updates may take many forms, such as incrementing
a reporting counter related to a number of reporting instances of
the tag information, adding a further entry to the tag
information's record including a time stamp for the current
reporting, identity of the reporting base station and/or mobile
communication device, and the associated physical location
information. The update may also cause the tag information to
removed from a list or moved to another list. This can occur when
the dispatcher responds with a message in response to the receipt
of the tag reporting signal.
In decision diamond 516, the agent 148 determines whether or not to
forward an update request to the base stations 108. If so, the
update is transmitted in step 520. If not or after step 520, the
agent 148 returns to decision diamond 500 to await the receipt of
the next tag reporting signal.
A number of variations and modifications of the invention can be
used. It would be possible to provide for some features of the
invention without providing others.
For example in one alternative embodiment, the tag reporting agent
260, tag filtering agent 128, and/or tag responding agent 148 are
implemented in software, hardware (e.g., a logic circuit), or a
combination thereof.
The present invention, in various embodiments, includes components,
methods, processes, systems and/or apparatus substantially as
depicted and described herein, including various embodiments,
subcombinations, and subsets thereof. Those of skill in the art
will understand how to make and use the present invention after
understanding the present disclosure. The present invention, in
various embodiments, includes providing devices and processes in
the absence of items not depicted and/or described herein or in
various embodiments hereof, including in the absence of such items
as may have been used in previous devices or processes, e.g., for
improving performance, achieving ease and\or reducing cost of
implementation.
The foregoing discussion of the invention has been presented for
purposes of illustration and description. The foregoing is not
intended to limit the invention to the form or forms disclosed
herein. In the foregoing Detailed Description for example, various
features of the invention are grouped together in one or more
embodiments for the purpose of streamlining the disclosure. This
method of disclosure is not to be interpreted as reflecting an
intention that the claimed invention requires more features than
are expressly recited in each claim. Rather, as the following
claims reflect, inventive aspects lie in less than all features of
a single foregoing disclosed embodiment. Thus, the following claims
are hereby incorporated into this Detailed Description, with each
claim standing on its own as a separate preferred embodiment of the
invention.
Moreover, though the description of the invention has included
description of one or more embodiments and certain variations and
modifications, other variations and modifications are within the
scope of the invention, e.g., as may be within the skill and
knowledge of those in the art, after understanding the present
disclosure. It is intended to obtain rights which include
alternative embodiments to the extent permitted, including
alternate, interchangeable and/or equivalent structures, functions,
ranges or steps to those claimed, whether or not such alternate,
interchangeable and/or equivalent structures, functions, ranges or
steps are disclosed herein, and without intending to publicly
dedicate any patentable subject matter.
* * * * *
References